1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14
// template <class _Tp> using __is_inplace_index
#include <utility>
struct S {};
int main() {
using I = std::in_place_index_t<0>;
static_assert( std::__is_inplace_index<I>::value, "");
static_assert( std::__is_inplace_index<const I>::value, "");
static_assert( std::__is_inplace_index<const volatile I>::value, "");
static_assert( std::__is_inplace_index<I&>::value, "");
static_assert( std::__is_inplace_index<const I&>::value, "");
static_assert( std::__is_inplace_index<const volatile I&>::value, "");
static_assert( std::__is_inplace_index<I&&>::value, "");
static_assert( std::__is_inplace_index<const I&&>::value, "");
static_assert( std::__is_inplace_index<const volatile I&&>::value, "");
static_assert(!std::__is_inplace_index<std::in_place_type_t<int>>::value, "");
static_assert(!std::__is_inplace_index<std::in_place_t>::value, "");
static_assert(!std::__is_inplace_index<void>::value, "");
static_assert(!std::__is_inplace_index<int>::value, "");
static_assert(!std::__is_inplace_index<S>::value, "");
}
|
